These can be quite slow on large boards.
See also: https://bugs.launchpad.net/kicad/+bug/1701791.
Fixed in revision 63a952d239d41ba70f73d9d572297d85a0b8abc6 https://git.launchpad.net/kicad/patch/?id=63a952d239d41ba70f73d9d572297d85a0b8abc6
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Fixed in revision 63a952d239d41ba 70f73d9d572297d 85a0b8abc6 /git.launchpad. net/kicad/ patch/? id=63a952d239d4 1ba70f73d9d5722 97d85a0b8abc6
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